Email security & network diagnostics

Inspect, validate and manage your domain's DMARC policy to stop spoofing and phishing at the source.

• Policy validation
• Alignment & tag check
• Enforcement guidance

Review authorized senders, count DNS lookups and keep your SPF record within the RFC 7208 limits.

• Syntax check
• DNS lookup counting
• Sender authorization

Verify your MTA-STS policy file and TLS-RPT reporting to enforce encrypted inbound mail delivery.

• Policy file check
• TLS enforcement
• Report validation

Fetch and analyze DKIM public keys, auto-detect selectors and review cryptographic key strength.

• Selector auto-detect
• Key strength check
• Instant lookup

Validate BIMI records and brand-logo configuration so your logo appears in supporting inboxes.

• Record validation
• Logo (SVG) check
• VMC detection

Reveal the mail servers that accept email for any domain, sorted by delivery priority.

• Priority mapping
• Host resolution
• Instant lookup

Trace an email's delivery path and inspect SPF/DKIM/DMARC results directly from raw headers.

• Delivery hop tracing
• Authentication results
• Spam-signal review

Run a full DNS and network diagnostic across every record type for a domain in a single pass.

• Full DNS sweep
• Mail-host check
• Domain health scoring